Steaming unit for tentering machines



June 13, 1933. M. M. KASANOF STEAMING UNIT FOR TENTERING MACHINES Original Filed May 22, 1929 1 INVENTOR Jfizurue MZJZJQ/M ATTORNEY WITNESSES WK/W Patented June 13, 1933 UNITED STATES MAURICE M. KASANOF, NEW YORK, N. Y.

STEAMING UNIT FOR 'rnnrnnmeimcnmns' Application filed May 22, 1929, Serial No. 365,217. Renewed October 25, 1932.

This invention relates to tentering machines for steaming and stretching or shrinking flat fabrics, and has particular reference to a steaming unit therefor, the same being similar in certain respects to a steaming unit of the character set forth in my copending application Serial No. 365,216.

In the present instance, the steaming unit is designed particularly for the purpose of subjecting certain classes of delicate fabrics being tentered or shrunk to a large volume of steam projected thereagainst at a low veloci: ty or pressure as contradistinguished from the copending case above referred to, in which the steam is projected at a high velocity or pressure against and through the fabric.

In addition to attaining the. object of the copending application for preventing the condensate or moisture from being carried by the steam onto'the fabric, the present invention comprehends means for bafiling the steam outlet or outlets in such a manner as to effect a substantial reduction in the velocity of the steam while uniformly distributing the same in a thick cloud over a wide area of the fabric being tentered 0r shrunk.

The invention further resides in the provision of an improved tcntering machine steaming'unit of the character set forth which is extremely simple in its construction and mode of use, which is inexpensive to manufacture and install and which is highly efficient in its purpose.

With the above recited and other objects in view, reference is had to the following description and accompanying drawing, in which there is exhibited one example or embodiment of the invention-while the claims define the actual scope of the same.

In the drawing:

Figure 1 is a longitudinal sectional view through a steaming unit constructed in accordance with the invention, illustrating the same in juxtaposition to the tenteringma- 5 chine frame and the fabric.

Figure 2 is an enlarged transverse sectional view thereof, taken approximately on the line indicated at 22 in Figure 1.

Referring to the drawing by characters of reference, the steaming unit includes a substantially horizontally disposed tubular casing 5 which is preferably of cylindrical formation in cross section and which is suitably supported for vertical adjustment and transversely of and beneath the tentering frame. In the drawing, the supporting means for the casing 5 consists of a plurality of cradles 6 having depending stems 7 telescopically arranged in tubular standards 8 which project upwardly from the base flanges 9 attached to the floor. Vertical adjustment of the casing 5 is accoi'nplished by relative movement of the stems 7 and the adjusted positions are maintained by virtue of set screws 10 which are threaded through the standards 8 for frictional engagement with the stems 7. V I

In practice, theopposite ends of the casing 5 are closed by headers 11 and 12. The former, which will hereinafter be referred to as the inlet header, is provided with a concentric or central steam inlet opening 13, into which a steani supply pipe 14.- extends. said supply pipe leading from a source of steam supply and being provided with the usual controlling valve 15. A steam conduit 16 in the nature of a pipe is arranged concentrically within and extends axially of the casing a") with its open endclosed by the header 11 and hence in communication with the steam inlet opening 13. The opposite closed end 17 thereof is preferably arranged at a point adjacent the header 12, which will hereinafter he referred to as the outlet header. The outlet header 12 is formed adjacent the lower portion thereof with an outlet opening 18 suitablyconnected with a steam trap 19 of any approved design. by virtue of which escape of the condensate or water of condensation is permitted while escape of steam is prevented. The conduit or pipe 16 is formed intermediate its length and on its under side with a plurality of outlet openings 20, by virtue of which thesteam received by the conduit or pipe 16 enters the casing 5. In 95 the present instance, the casing 5 is formed in its upper portion with one or more steam outlets 21, preferably in the nature of slots, or if desired, rows of perforations, which may or may not be disposed radially. In practice, If!

the casing 5 will be slightly inclined from the steam inlet end to the condensation outlet end, and this may be accomplished by relative adjustment of the stems 7 in the standards 8 or'otherwise.

In the drawing, A, A designate the side rails of the tentering frame, B the fabric which is fed longitudinally in any desired manner, such as by the pins C which are carried by the chains D.

In order to provide means for baflling the steam outlet or outlets 21 so as to kill the force and reduce the velocity of the flow of the steam, an inverted V-shaped bafile element 22 is arranged exterior of the casing 5 and directly over the outlet or outlets 21 with the lower edges 23 of said bafiie element spaced slightly above the casing 5. The baflle element is supported at its opposite ends from the casing by downwardly directed end walls 24. In order to confine and control the direction of the steam as it emerges from between the opposite lower side edges 23 of the baflle element 22 and the periphery of the easing 5, a rectangular housing 25 is provided which is of slightly greater length and slightly greater width than thebafile element. The housing walls are suitably connected at their lower edges to the casing periphery 5 and are preferably formed with inwardly directed upper edges 26 to which a screen or foraminous panel 27 is attached. It thus follows that the steam which emerges from under the baffle element 22 is uniformly distributed by the screen or panel 27 as it passes through the interstices thereof and rises in the form of a cloud against the under side of the fabric B. It is also apparent that due to the construction of the casing 5 and steam conduit 16, practically all of the moisture and water of condensation is prevented from being carried by the steam for contact with the fabric. Due to the fact that some condensation will take place in the chamber 28 which is defined by the housing 25, provision is made for the gravitational discharge of said condensate through drain ports 29 in the casing wall 5, said ports being located immediately within the confines of the casing walls 25 and toward the outlet end of the casing 5. The chamber 28 in effect constitutes an expansion chamber which is open to the atmosphere so that after the pressure of the steam admitted through the outlet or outlets 21 has been killed, pressure cannot be built up in the chamber 28 again due to the multiplicity of openings defined by the interstices of the screen 27.

What is claimed is:

1. In a tentering machine, a steaming unit including an element arranged transversely under the tenterin frame having a steam outlet in its upper slde and an impervious bafiie member arranged exteriorly of and supported by said element over the steam outlet thereof for bafiing the force of the steam including an element arranged transversely under the tenterin frame having a steam outlet 1n its upper side and means arranged exteriorly of and supported by said element over the steam outlet thereof for battling the force of the steam to reduce the velocity of its projection against the fabric, said means including a housing defining a steam expansion chamber with which the steam outlet communicates and a. baffle directly overlying said steam outlet and arranged within said expansion chamber.

3. In a tentering machine, a steaming unit including an element arranged transversely under the tentering frame having a steam outlet in its upper side and means arranged exteriorly of and supported by said element over the steam outlet thereof for bafiiing the force of the steam to reduce the velocity of ts projection against the fabric, said means including a housing having a foraminous upper wall and defining a steam expansion chamber and a bafile underlying said foraminous wall, arranged within said housing and overlying the steam outlet of said element.

4. In a tentering machine, a steaming unit including an element arranged transversely under the tentering frame having a steam outlet in its upper side and means arranged exteriorly of and supported by said element over the steam outlet thereof for baffling the force of the steam to reduce the velocity of its projection against the fabric, said means ineluding a housing having a foraminous upper wall and defining a steam expansion chamber and an inverted V-shaped baflle underlying said foraminous wall, arranged within said housing and overlying the steam outlet of said element.

5. In a tentering machine, a steaming unit including a substantially horizontally disposed closed tubular casing arranged transversely under the tentering frame, said casing adapted to receive steam from a source of supply and having a steam outlet opening in its upper side, means arranged exteriorly of and supported by said casing over the outlet opening thereof for baflling the force of the steam to reduce the velocity of its projection a ainst the fabric being treated on the tentering frame, said means including a housing having upstanding side walls framing the steam outlet of the casing and an upper foraminous wall closing the upper end of said housing and an inverted V-shaped bafile arranged within said housing beneath the foraminous upper wall and directly overlying the steam outlet of the casing.

6. In a tentering machine, a steaming unit including a substantially horizontally disposed closed tubular casing arranged transversely under the tentering frame, said casing adapted to receive steam from a source of supply and having a-steam outlet opening in its upper side, means arranged exteriorly of and supported by said casing over the outlet opening thereof for baflling the force of the steam to reduce the velocity of its projection against the fabric being treated on the tentering frame, said meansincluding a housing having upstanding side and end walls 1 framing the steam outlet of the casing and an upper foraminous wall closing the upper end of said housing and an inverted V-shaped baflie arranged within said housing beneath the foraminous upper wall and directly over,- lying the steam outlet of the casing, the lower edges of said bafile being slightly spaced from the upper portion of the casing.

7. In a tentering machine, the combination with a steamin unit including a horizontally 2 disposed close tubular casing having a plurality of steam outlet openings on its upper side and having a steam inlet at one end thereof, a longitudinally extending steam conduit within the casing communicating with the steam inlet and having downwardly directed steam outlet openings, said casing having at its opposite end an outlet provided with a steam trap, and means carried by said casing and arranged exteriorly over the steam 9 outlet openings thereof for baflling the force of the steam to reduce its velocity of projection against the fabric.

MAURICE M. KASANOF. 

